Modulation of splanchnic circulation: Role in perioperative management of liver transplant patients

Figure 4 Distribution of catecholamine receptors in the splanchnic area. The hepatic artery contains α1-, α2-, and β2-adrenergic receptors; the preportal (intestinal capacitance) and portal veins contain α-adrenergic, but not β2-adrenergic receptors. Capacitance vessels located inside the liver contain only α-adrenergic receptors, while the hepatic veins contain both α- and β2-adrenergic receptors.